./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:30:56,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:30:56,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:30:56,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:30:56,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:30:56,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:30:56,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:30:56,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:30:56,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:30:56,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:30:56,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:30:56,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:30:56,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:30:56,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:30:56,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:30:56,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:30:56,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:30:56,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:30:56,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:30:56,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:30:56,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:30:56,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:30:56,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:30:56,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:30:56,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:30:56,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:30:56,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:30:56,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:30:56,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:30:56,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:30:56,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:30:56,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:30:56,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:30:56,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:30:56,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:30:56,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:30:56,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:30:56,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:30:56,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:30:56,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:30:56,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:30:56,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:30:56,403 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:30:56,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:30:56,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:30:56,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:30:56,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:30:56,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:30:56,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:30:56,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:30:56,406 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:30:56,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:30:56,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:30:56,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:30:56,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:30:56,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:30:56,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:30:56,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:30:56,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e [2021-12-06 17:30:56,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:30:56,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:30:56,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:30:56,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:30:56,619 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:30:56,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2021-12-06 17:30:56,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/data/87c60e8e8/1847e3d105f54ae391bdd31f301dac13/FLAG5c47dc61d [2021-12-06 17:30:57,121 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:30:57,121 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2021-12-06 17:30:57,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/data/87c60e8e8/1847e3d105f54ae391bdd31f301dac13/FLAG5c47dc61d [2021-12-06 17:30:57,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/data/87c60e8e8/1847e3d105f54ae391bdd31f301dac13 [2021-12-06 17:30:57,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:30:57,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:30:57,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:30:57,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:30:57,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:30:57,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf19f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57, skipping insertion in model container [2021-12-06 17:30:57,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:30:57,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:30:57,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2021-12-06 17:30:57,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:30:57,564 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:30:57,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2021-12-06 17:30:57,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:30:57,746 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:30:57,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57 WrapperNode [2021-12-06 17:30:57,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:30:57,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:30:57,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:30:57,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:30:57,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,913 INFO L137 Inliner]: procedures = 62, calls = 1929, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4123 [2021-12-06 17:30:57,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:30:57,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:30:57,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:30:57,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:30:57,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:57,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:58,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:58,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:58,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:58,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:30:58,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:30:58,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:30:58,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:30:58,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (1/1) ... [2021-12-06 17:30:58,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:30:58,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:30:58,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:30:58,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c329c2f4-a1df-47cf-97bb-3e375f38963f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 17:30:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 17:30:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 17:30:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 17:30:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 17:30:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2021-12-06 17:30:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 17:30:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 17:30:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 17:30:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 17:30:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 17:30:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 17:30:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-06 17:30:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 17:30:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 17:30:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-06 17:30:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-06 17:30:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:30:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:30:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:30:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:30:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:30:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 17:30:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 17:30:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 17:30:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 17:30:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 17:30:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 17:30:58,417 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:30:58,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:31:04,060 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:31:04,079 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:31:04,079 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:31:04,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:31:04 BoogieIcfgContainer [2021-12-06 17:31:04,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:31:04,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:31:04,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:31:04,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:31:04,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:30:57" (1/3) ... [2021-12-06 17:31:04,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf49e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:31:04, skipping insertion in model container [2021-12-06 17:31:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:30:57" (2/3) ... [2021-12-06 17:31:04,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf49e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:31:04, skipping insertion in model container [2021-12-06 17:31:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:31:04" (3/3) ... [2021-12-06 17:31:04,089 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-1.c [2021-12-06 17:31:04,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:31:04,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:31:04,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:31:04,143 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:31:04,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:31:04,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 815 states have (on average 1.2748466257668711) internal successors, (1039), 847 states have internal predecessors, (1039), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2021-12-06 17:31:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-12-06 17:31:04,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:31:04,253 INFO L514 BasicCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:31:04,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:31:04,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:31:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1711506897, now seen corresponding path program 1 times [2021-12-06 17:31:04,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:31:04,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144698665] [2021-12-06 17:31:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:31:04,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms